一、 定义与讲解
一般现在时：表示经常性的事情，经常性的动作或一般性事实。
时间状语：often 经常，usually通常，always 总是，every每个，sometimes 有时，at …在几点钟
只有在第三人称单数用动词的“三单变化”，其他用动词的原形。

1.The last time I ______ to the cinema was two years ago.
A. go B. have gone C. have been D. Went
答案：D 时态的用法。由 “two years ago”可知此句是一般过去时。排除A、B、C三项。故选D。
2. — Have you ever been to Canada?
Yes, I here last year with my parents.
A. have been B. have gone C. went D. Go
答案：C考查时态的用法。由时间状语last year 可推断出该句为一般过去时态。排除A、B、D。故选C。
3.I called you, but nobody answered. Where_______ you?
A.is B. are C. was D. were
答案D 考查时态用法。由前句called和answered可知，打了电话而没人接，为一般过去时，you为第二人称。故选D
4.Betty will ring me up when she _______ in Beijing.
A.arrive B. arrives C. arrived D. will arrive
答案B 考查动词时态。时间状语从句中，如果主句和从句的动作都发生在将来，从句时态要用一般现在时表示将来。故选B。
5. I ______my hometown for a long time, I really miss it! A. left B. went away from C. have left D. have been away from
答案D 考查动词时态。由for a long time可判定该句为现在完成时。排除A和B；leave为短暂性动词，不能和表示一段时间的状语连用;排除C；状语for a long time表示一段时间，应该与延续性动词或表状态的词连用，故选D。
6.—I ______ something wrong just now. May 1 use your eraser? —Of course. Here you are. A. write B. wrote C. am writing
答案：B 考查时态的用法。句中的时间状语为just now，“刚才”用一般过去时态。
7.－Where is John? －He ______ the science lab.
A. has gone to B. has been to C. went to
B.答案：A 考查时态及动词的用法。根据句意：他已经去了科学实验室，表示动作已发生，用现在完成时，A项表示去了某地，即：人没在这儿；B项表示曾经去过某地，人又回来了。